<template>
  <a-layout>
    <a-layout-sider width="200" style="background: #fff">
      <a-menu
          mode="inline"
          :style="{ height: '100%', borderRight: 0 }"
          @click="handleClick"
      >
        <a-menu-item key="welcome">
          <span>欢迎</span>
        </a-menu-item>
        <a-sub-menu v-for="item in level1" :key="item.id">
          <template v-slot:title>
            <span>{{ item.name }}</span>
          </template>
          <a-menu-item v-for="child in item.children" :key="child.id">
            <span>{{ child.name }}</span>
          </a-menu-item>
        </a-sub-menu>
      </a-menu>
    </a-layout-sider>
    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <div v-show="isShowWelcome">
        <the-welcome></the-welcome>
      </div>
      <a-list v-show="!isShowWelcome"
              item-layout="vertical"
              size="large"
              :grid="{ gutter: 20, column: 3 }"
              :data-source="ebooks">
        <template #renderItem="{ item }">
          <a-list-item key="item.name">
            <a-list-item-meta :description="item.description">
              <template #title>
                <router-link :to="'/doc?ebookId='+item.id">
                  {{ item.name }}
                </router-link>
              </template>
              <template #avatar>
                <a-avatar :src="item.cover"/>
              </template>
            </a-list-item-meta>
            {{ item.content }}
          </a-list-item>
          <span>
              <EyeOutlined/>&nbsp;
              {{ item.viewCount }}&nbsp;
              <LikeOutlined/>&nbsp;
              {{ item.voteCount }}&nbsp;
              <FileTextOutlined/>&nbsp;
              {{ item.docCount }}
          </span>
        </template>
      </a-list>
    </a-layout-content>
  </a-layout>
</template>

<script lang="ts">
import {defineComponent, onMounted, ref} from 'vue';
import axios from 'axios'
import {message} from 'ant-design-vue'
import {Tool} from "@/util/tool";
import TheWelcome from "@/components/TheWelcome.vue";

export default defineComponent({
  name: 'Home',
  components: {
    TheWelcome
  },
  setup() {
    const ebooks = ref();
    const pagination = {
      page: 1,
      size: 100
    }

    const level1 = ref();
    /**
     * 查询分类信息
     */
    const handleQueryCategory = () => {
      axios.get("/category/list").then((response) => {
        const data = response.data;
        if (data.success) {
          level1.value = [];
          level1.value = Tool.array2Tree(data.content, 0);
        } else {
          message.error(data.message);
        }
      })
    };

    // 是否展示欢迎页面
    const isShowWelcome = ref(true);
    let category2Id = 0;

    const handleQueryBook = () => {
      axios.get("/ebook/search", {
        params: {
          page: pagination.page,
          size: pagination.size,
          category2Id: category2Id
        }
      }).then((response) => {
        const data = response.data;
        if (data.success) {
          ebooks.value = data.content.list;
        } else {
          message.error(data.message);
        }
      });
    }
    const handleClick = (value: any) => {
      if (value.key === "welcome") {
        isShowWelcome.value = true;
      } else {
        category2Id = value.key;
        isShowWelcome.value = false;
        handleQueryBook();
      }
    };

    onMounted(() => {
      handleQueryCategory();
    });

    return {
      ebooks,
      handleClick,
      level1,
      isShowWelcome
    };
  }
})

</script>

<style scoped>
.ant-avatar {
  width: 50px;
  height: 50px;
  line-height: 50px;
  border-radius: 8%;
  margin: 5px 0;
}
</style>
